If I could only learn one additional language, and I wanted to travel the world, what language would serve me best other than English or Spanish?
If I could only learn one additional language, and I wanted to travel the world, what language would serve me best other than English or Spanish?
But OP was asking about travelling the world. Sign language wouldn’t help with that.
Sign language isn’t one language. There’s American Sign Language, British Sign Language, Australian Sign Language, Nigerian Sign Language, etc.
American Sign Language and British Sign Language are completely unintelligible to each other.